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All results from a given calculation for CH3OC2H5 (Ethane, methoxy-)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-194.271372
Energy at 298.15K-194.280341
HF Energy-194.271372
Nuclear repulsion energy133.711131
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B3PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3149 3013 26.51      
2 A' 3146 3010 32.50      
3 A' 3069 2936 16.60      
4 A' 2991 2862 85.94      
5 A' 2971 2843 39.99      
6 A' 1560 1492 1.03      
7 A' 1533 1467 4.54      
8 A' 1525 1459 7.44      
9 A' 1500 1435 0.06      
10 A' 1448 1385 40.32      
11 A' 1412 1351 5.71      
12 A' 1252 1198 59.76      
13 A' 1192 1141 126.66      
14 A' 1130 1081 6.01      
15 A' 1054 1008 16.88      
16 A' 885 847 9.60      
17 A' 469 449 0.57      
18 A' 288 276 2.89      
19 A" 3153 3017 27.30      
20 A" 3036 2904 67.83      
21 A" 3000 2870 81.29      
22 A" 1511 1446 8.17      
23 A" 1509 1444 3.10      
24 A" 1311 1254 1.36      
25 A" 1212 1160 9.67      
26 A" 1178 1127 0.27      
27 A" 831 795 0.59      
28 A" 269 258 2.24      
29 A" 216 207 1.11      
30 A" 118 113 2.91      

Unscaled Zero Point Vibrational Energy (zpe) 23959.8 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 22922.4 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B3PW91/6-31G*
ABC
0.94255 0.13911 0.13016

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.316 1.234 0.000
O2 0.013 0.710 0.000
C3 0.000 -0.700 0.000
C4 -1.441 -1.170 0.000
H5 1.229 2.324 0.000
H6 1.884 0.923 0.893
H7 1.884 0.923 -0.893
H8 0.533 -1.087 -0.887
H9 0.533 -1.087 0.887
H10 -1.489 -2.264 0.000
H11 -1.965 -0.799 0.887
H12 -1.965 -0.799 -0.887

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.40362.33893.65721.09351.10301.10302.60452.60454.48313.95933.9593
O21.40361.41042.37682.02032.08372.08372.07032.07033.33202.64102.6410
C32.33891.41041.51563.26422.64202.64201.10481.10482.15922.15772.1577
C43.65722.37681.51564.39704.02884.02882.16592.16591.09541.09471.0947
H51.09352.02033.26424.39701.78581.78583.59203.59205.33244.55354.5535
H61.10302.08372.64204.02881.78581.78513.00492.42134.72524.21604.5761
H71.10302.08372.64204.02881.78581.78512.42133.00494.72524.57614.2160
H82.60452.07031.10482.16593.59203.00492.42131.77402.50223.07712.5143
H92.60452.07031.10482.16593.59202.42133.00491.77402.50222.51433.0771
H104.48313.33202.15921.09545.33244.72524.72522.50222.50221.77781.7778
H113.95932.64102.15771.09474.55354.21604.57613.07712.51431.77781.7737
H123.95932.64102.15771.09474.55354.57614.21602.51433.07711.77781.7737

picture of Ethane, methoxy- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 112.443 O2 C1 H5 107.363
O2 C1 H6 111.904 O2 C1 H7 111.904
O2 C3 C4 108.591 O2 C3 H8 110.203
O2 C3 H9 110.203 C3 C4 H10 110.543
C3 C4 H11 110.467 C3 C4 H12 110.467
C4 C3 H8 110.515 C4 C3 H9 110.515
H5 C1 H6 108.782 H5 C1 H7 108.782
H6 C1 H7 108.029 H8 C3 H9 106.812
H10 C4 H11 108.538 H10 C4 H12 108.538
H11 C4 H12 108.218
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.251      
2 O -0.453      
3 C -0.053      
4 C -0.522      
5 H 0.179      
6 H 0.147      
7 H 0.147      
8 H 0.139      
9 H 0.139      
10 H 0.165      
11 H 0.182      
12 H 0.182      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.928 -0.690 0.000 1.157
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.087 1.776 0.000
y 1.776 -25.199 0.000
z 0.000 0.000 -26.276
Traceless
 xyz
x 0.651 1.776 0.000
y 1.776 0.482 0.000
z 0.000 0.000 -1.133
Polar
3z2-r2-2.266
x2-y20.112
xy1.776
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.746 0.699 0.000
y 0.699 5.872 0.000
z 0.000 0.000 5.057


<r2> (average value of r2) Å2
<r2> 102.822
(<r2>)1/2 10.140